Screen size
Redmi K80 UltraWinner: 6.8"+0.9%
Redmi Note 15 Special6.8"
Quick verdict
Redmi K80 Ultra leads the measured specs 12-5.
Measured wins
Redmi K80 Ultra
12
spec wins
Overall winner
Ties
6
equal specs
Redmi Note 15 Special
5
spec wins
Screen size
Technology
Redmi K80 Ultra
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Redmi Note 15 Special
GSM / HSPA / LTE / 5G
2G bands
Redmi K80 Ultra
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Redmi Note 15 Special
GSM 850 / 900 / 1800 / 1900
3G bands
Redmi K80 Ultra
HSDPA 800 / 850 / 900 / 1700(AWS) / 2100 , CDMA2000 1x
Redmi Note 15 Special
HSDPA 850 / 900 / 2100
4G bands
Redmi K80 Ultra
Resolution
Refresh rate
Peak brightness
equal specsPixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
equal specs1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 41
5G bands
Redmi K80 Ultra
1, 3, 5, 7, 8, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Redmi Note 15 Special
1, 3, 5, 8, 28, 40, 78 SA/NSA
Speed
Redmi K80 Ultra
HSPA, LTE, 5G
Redmi Note 15 Special
HSPA, LTE, 5G
Announced
Redmi K80 Ultra
2025, June 26
Redmi Note 15 Special
2026, April 02
Status
Redmi K80 Ultra
Available. Released 2025, June 26
Redmi Note 15 Special
Released Apr 7, 2026
Dimensions
Redmi K80 Ultra
163.1 x 77.9 x 8.2 mm (6.42 x 3.07 x 0.32 in)
Redmi Note 15 Special
164.0 x 75.4 x 7.4 mm or 7.8 mm
Weight
Redmi K80 Ultra
219 g (7.72 oz)
Redmi Note 15 Special
178 g or 182 g (6.28 oz)
Build
Redmi K80 Ultra
Glass front, aluminum frame
Redmi Note 15 Special
-
SIM
Redmi K80 Ultra
Nano-SIM + Nano-SIM
Redmi Note 15 Special
Nano-SIM + Nano-SIM
Other
Redmi K80 Ultra
IP68 dust tight and water resistant (immersible up to 2m for 30 min)
Redmi Note 15 Special
Drop resistant up to 1.7m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions IP66 dust tight and water resistant (high pressure water jets)
Type
Redmi K80 Ultra
OLED, 68B colors, 144Hz, Dolby Vision, HDR10+, HDR Vivid, 1800 nits (HBM), 3200 nits (peak)
Redmi Note 15 Special
AMOLED, 68B colors, 120Hz, 3840Hz PWM, 800 nits (typ), 3200 nits (peak)
Size
Redmi K80 Ultra
6.83 inches, 114.5 cm2 (~90.2% screen-to-body ratio)
Redmi Note 15 Special
6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution
Redmi K80 Ultra
1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density)
Redmi Note 15 Special
1080 x 2392 pixels (~388 ppi density)
Protection
Redmi K80 Ultra
Scratch/drop-resistant glass
Redmi Note 15 Special
-
OS
Redmi K80 Ultra
Android 15, HyperOS 2
Redmi Note 15 Special
Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset
Redmi K80 Ultra
Mediatek Dimensity 9400+ (3 nm)
Redmi Note 15 Special
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
CPU
Redmi K80 Ultra
Octa-core (1x3.63 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720)
Redmi Note 15 Special
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
GPU
Redmi K80 Ultra
Immortalis-G925
Redmi Note 15 Special
Adreno 710
Card slot
Redmi K80 Ultra
No
Redmi Note 15 Special
microSDXC (uses shared SIM slot)
Internal
Redmi K80 Ultra
256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Redmi Note 15 Special
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Other
Redmi K80 Ultra
UFS 4.1
Redmi Note 15 Special
UFS 2.2
Dual
Redmi K80 Ultra
50 MP, f/1.9, 23mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP, 119˚ (ultrawide), 1/4.0", 1.12µm
Redmi Note 15 Special
50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Features
Redmi K80 Ultra
Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Redmi Note 15 Special
LED flash, HDR, panorama
Video
Redmi K80 Ultra
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS
Redmi Note 15 Special
4K@30fps, 1080p@30fps, gyro-EIS
Single
Redmi K80 Ultra
20 MP, (wide), 1/2.0", 0.8µm
Redmi Note 15 Special
20 MP, f/2.2, (wide), 1/4"
Features
Redmi K80 Ultra
HDR
Redmi Note 15 Special
-
Video
Redmi K80 Ultra
1080p@30/60fps
Redmi Note 15 Special
1080p@30fps
Loudspeaker
Redmi K80 Ultra
Yes, with stereo speakers
Redmi Note 15 Special
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Redmi K80 Ultra
No
Redmi Note 15 Special
No
Other
Redmi K80 Ultra
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
Redmi Note 15 Special
24-bit/192kHz Hi-Res audio
WLAN
Redmi K80 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
Redmi Note 15 Special
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Redmi K80 Ultra
5.4, A2DP, LE, LHDC 5
Redmi Note 15 Special
5.1, A2DP, LE
Positioning
Redmi K80 Ultra
GPS (L1+L5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC, GLONASS
Redmi Note 15 Special
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
Redmi K80 Ultra
Yes
Redmi Note 15 Special
No
Infrared port
Redmi K80 Ultra
Yes
Redmi Note 15 Special
Yes
Radio
Redmi K80 Ultra
Unspecified
Redmi Note 15 Special
No
USB
Redmi K80 Ultra
USB Type-C
Redmi Note 15 Special
USB Type-C 2.0, OTG
Sensors
Redmi K80 Ultra
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Redmi Note 15 Special
Fingerprint (under display, optical), accelerometer, gyro, compass
Other
Redmi K80 Ultra
-
Redmi Note 15 Special
Virtual proximity sensing
Type
Redmi K80 Ultra
Si/C Li-Ion 7410 mAh
Redmi Note 15 Special
Li-Ion 5800 mAh
Charging
Redmi K80 Ultra
100W wired, PD3.0 Bypass charging
Redmi Note 15 Special
45W wired 18W reverse wired
Colors
Redmi K80 Ultra
Gray, White, Blue, Green
Redmi Note 15 Special
Crimson Reserve red, Carbon Black, Frosted White
Price
Redmi K80 Ultra
About 310 EUR
Redmi Note 15 Special
About 190 EUR